146421270 has 80 divisors (see below), whose sum is σ = 396483120. Its totient is φ = 38771136.

The previous prime is 146421269. The next prime is 146421271. The reversal of 146421270 is 72124641.

146421270 is a `hidden beast` number, since 1 + 4 + 642 + 12 + 7 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (146421269) and next prime (146421271).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146421271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 131476 + ... + 132584.

It is an arithmetic number, because the mean of its divisors is an integer number (4956039).

Almost surely, 2^146421270 is an apocalyptic number.

146421270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 146421270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (198241560).

146421270 is an abundant number, since it is smaller than the sum of its proper divisors (250061850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

146421270 is a wasteful number, since it uses less digits than its factorization.

146421270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1282 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 146421270 is about 12100.4656935177. The cubic root of 146421270 is about 527.0697074215.

The spelling of 146421270 in words is "one hundred forty-six million, four hundred twenty-one thousand, two hundred seventy".